I have experienced this in Farmacies and stores like Sams', Costco.... I don't get why there it that blower, fan or what ever it is.
2006-09-20 09:29:50 · 4 answers · asked by castellanos.cristina 2 in Social Science ➔ Other - Social Science
Two answers that I have heard is that:
1. They keep out bugs (flies, bees, wasps etc)
2. They keep the cool air conditioned air inside and the warmer outside air out (or vise versa in winter) when stores keep big doors open all day (like Sam's and Costco)
2006-09-20 09:47:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
These are called air curtians in the HVAC industry. What it is suppose to do is create a barrior of air between the store and outside. This prevents either air conditioned or heated air from escaping the store and creating a more comfortable store to shop in.
2006-09-20 09:38:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋
it keeps things like bugs out plus it keeps it wharm or cold LOL
2006-09-21 05:33:47 · answer #3 · answered by kill_me_not_realli_2009 2 · 0⤊ 0⤋
that is called a fly fan..
nuff said??
2006-09-20 09:32:08 · answer #4 · answered by lugar t axhandle 4 · 0⤊ 0⤋